<!DOCTYPE html>
<!--
Copyright (c) 2013 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<link rel="import" href="/tracing/base/utils.html">
<link rel="import" href="/tracing/ui/analysis/analysis_sub_view.html">
<link rel="import" href="/tracing/ui/analysis/related_events.html">
<link rel="import" href="/tracing/ui/analysis/single_event_sub_view.html">

<dom-module id='tr-ui-a-single-async-slice-sub-view'>
  <template>
    <style>
    :host {
      display: flex;
      flex-direction: row;
    }
    #events {
      display:flex;
      flex-direction: column;
    }
    </style>
    <tr-ui-a-single-event-sub-view id="content"></tr-ui-a-single-event-sub-view>
    <div id="events">
      <tr-ui-a-related-events id="relatedEvents"></tr-ui-a-related-events>
    </div>
  </template>
</dom-module>
<script>
'use strict';

Polymer({
  is: 'tr-ui-a-single-async-slice-sub-view',
  behaviors: [tr.ui.analysis.AnalysisSubView],

  get selection() {
    return this.$.content.selection;
  },

  set selection(selection) {
    if (selection.length !== 1) {
      throw new Error('Only supports single slices');
    }
    this.$.content.setSelectionWithoutErrorChecks(selection);
    this.$.relatedEvents.setRelatedEvents(selection);
    if (this.$.relatedEvents.hasRelatedEvents()) {
      this.$.relatedEvents.style.display = '';
    } else {
      this.$.relatedEvents.style.display = 'none';
    }
  },

  getEventRows_(event) {
    // TODO(nduca): Figure out if there is a cleaner way to do this.
    const rows = this.__proto__.__proto__.getEventRows_(event);

    // Put the ID up top.
    rows.splice(0, 0, {
      name: 'ID',
      value: event.id
    });
    return rows;
  },

  get relatedEventsToHighlight() {
    if (!this.currentSelection_) return undefined;
    return tr.b.getOnlyElement(this.currentSelection_).associatedEvents;
  }
});
tr.ui.analysis.AnalysisSubView.register(
    'tr-ui-a-single-async-slice-sub-view',
    tr.model.AsyncSlice,
    {
      multi: false,
      title: 'Async Slice',
    });
</script>
